In the 2014 episode "Opposites A-Frack," radio host Robert Siegel appears as himself opposite Mr. Burns, the owner of the Springfield Nuclear Power Plant.

Sideshow Bob

Question 7 of 30

"Sorry, Mom, the mob has spoken."

Lisa Simpson

Bart Simpson

Bart Simpson says this line in the "Monorail Song" when Marge expresses her hesitation about Springfield's purchase of a new monorail.

Maggie Simpson

Question 8 of 30

"Go out on a Tuesday? Who am I, Charlie Sheen?"

Marge Simpson

Marge Simpson utters this line as clever homage to bad boy Charlie Sheen, giving another nod to "The Simpsons" penchant for capturing current events. In 2011, at the time of the episode's debut, Sheen had just been canned from the sitcom "Two and a Half Men" after a public meltdown.

Reverend Lovejoy

Waylon Smithers

Question 9 of 30

"Trust me Bart, it's better to walk in on both of your parents than just one of them."

Nelson Muntz

Lisa Simpson

Milhouse Van Houten

Milhouse Van Houten, Bart Simpson's best friend, offers this take on surprising one's parents in the "Haw-Hawed Couple" episode that originally aired on Dec. 10, 2006.

Question 10 of 30

True or False: Carl Carlson once said, "Kill my boss? Do I dare live out the American dream?"

true

false

Although, it was actually Homer Simpson who said it, though his coworker Carl might have had similar thoughts.

Question 11 of 30

"Oh, loneliness and cheeseburgers are a dangerous mix."

Barney Gumble

Comic Book Guy

In a long-running gag, other characters only referred to this recurring character as Comic Book Guy. The gag ended in the 2005 episode "Homer and Ned's Hail Mary Pass," when the character told Ned Flanders, "My name is Jeff Albertson, but everyone calls me Comic Book Guy."

Ned Flanders

Question 12 of 30

"Bart, I'm glad you're here. Milhouse could use a friend like you."

Luann Van Houten

Luann Van Houten, Milhouse's mother, said this kind phrase to Bart. Moments later, Milhouse wrestled Bart to the floor in a stranglehold.

Marge Simpson

Ned Flanders

Question 13 of 30

"Yeah Bart, I am so Crunchy the Clown!"

Homer Simpson

Barney Gumble

In the "Kamp Krusty" episode that originally aired on Sept. 24, 1992, a perpetually tipsy Barney Gumble tries to convince Bart that he's actually Krusty the Clown.

Comic Book Guy

Question 14 of 30

"Dad, just for once, don’t you want to try something new?"

Lisa Simpson

When Lisa Simpson asks her dad to attempt something new, he counters by saying, "Oh Lisa, trying is just the first step toward failure." Dan Castellaneta is the voice actor behind Homer's trademark voice.

Bart Simpson

Ralph Wiggum

Question 15 of 30

"Sequel?"

Lisa Simpson

Maggie Simpson

In the 2007 feature-length "The Simpsons Movie," little Maggie plucks out her pacifier and says her first word: "sequel." Alas, that has not happened yet.

Disco Stu

Question 16 of 30

"Hey guys, just so you don't hear any wild rumors, I'm being indicted for fraud in Australia."

Duffman

Ned Flanders

Bart Simpson

In "Bart vs. Australia," which aired on Feb. 19, 1995, Bart Simpson confesses to his father that a little trouble might be brewing in the Land Down Under — and we're not referring to Men At Work lyrics.

Question 17 of 30

"There it is, the world's first convenience store."

Bart Simpson

Apu Nahasapeemapetilon

Homer and Apu trek the Himalayas in an attempt to regain Apu's job and eventually reach the world's first convenience store. "This isn't very convenient," Homer aptly points out when they arrive.

Milhouse Van Houten

Question 18 of 30

"Homer, lighten up! You're making Happy Hour bitterly ironic."

Barney Gumble

Krusty the Clown

Moe Szyslak

Bar owner Moe Szyslak consoles Homer in the 1991 Episode "Principal Charming," in which Marge forces Homer to help her sister Selma find a husband.

Question 19 of 30

"There's only one fat guy that brings us presents and his name ain't Santa."

Bart Simpson

Bart Simpson is, of course, referring to his father in "Simpsons Roasting on an Open Fire," the premiere full-length episode of the series. "The Simpsons" originally appeared as 48 roughly one-minute shorts on "The Tracey Ullman Show."

Lisa Simpson

Maggie Simpson

Question 20 of 30

"Doughnuts? I told you I don't like ethnic food!"

Kent Brockman

Waylon Smithers

Charles Montgomery Burns

In "Homer the Smithers," Mr. Burns' personal assistant Waylon Smithers goes on vacation, and Homer stands in for Smithers. According to a family tree designed by Matt Groening, Mr. Burns is a distant relative of Homer.

Question 21 of 30

True or False: Homer Simpson once said, "Making teenagers depressed is like shooting fish in a barrel."

true

false

While this might sound like Homer, Bart uttered this phrase in "Homerpalooza." Trying to prove he is still cool, Homer takes Bart and Lisa to the Hullabalooza music festival, a parody of the real Lollapalooza music festival.

Question 22 of 30

"A man who envies our family is a man who needs help."

Marge Simpson

Lisa Simpson

When Krusty the Clown has dinner with the Simpsons, he recalls his difficult relationship with his father. Bart and Lisa set out to reunite them in the 1991 episode "Like Father, Like Clown."

Homer Simpson

Question 23 of 30

"Aim so low no one will even care if you succeed."

Marge Simpson

In the season 8 episode "The Twisted World of Marge Simpson," Marge becomes depressed when her pretzel business fails, so Homer brings in the mob to help boost business.

Homer Simpson

Grampa Simpson

Question 24 of 30

Bart said, "Oh, my God. The dead have risen and are voting Republican" about who?

Maude Flanders

Mayor Quimby

Sideshow Bob

Sideshow Bob is released from prison and elected mayor in "Sideshow Bob Roberts." Five-time Emmy Award winner Kelsey Grammer is the voice of Sideshow Bob.

Question 25 of 30

"Shoplifting is a victimless crime, like punching someone in the dark."

Nelson Muntz

In "Marge Be Not Proud," Springfield Elementary bully Nelson Muntz goads Bart into shoplifting. The voices of both Bart and Nelson are performed by Nancy Cartwright.

Milhouse Van Houten

Bart Simpson

Question 26 of 30

"So basically I met one nice French person."

Apu Nahasapeemapetilon

Kent Brockman

Bart Simpson

In France as an exchange student, Bart is forced to work for two evil French winemakers, Cesar and Ugolin. The two are named after villains in the classic French novels "Jean de Florette" and "Manon of the Spring."

Question 27 of 30

"You're darn lucky to have Ned Flanders as a neighbor."

Ned Flanders

Edna Krabappel

Edna falls for Ned in the season 22 finale, "The Ned-Liest Catch." In the series, Ned and Edna stay together until Edna is retired as a character in season 25 following the death of Marcia Wallace, the voice of Edna Krabappel.

Marge Simpson

Question 28 of 30

"Wow. Eye of the tiger, mouth of a Teamster."

Charles Montgomery Burns

Homer Simpson

After growing tired of Bart getting all of Homer's attention, Lisa reveals her competitive spirit by playing hockey in the 1994 episode "Lisa on Ice."

Dr. Hibbert

Question 29 of 30

"How come they never call me Fun Mom?"

Marge Simpson

Tired of Homer being the fun parent, Marge becomes a foodie with Bart and Lisa in "The Food Wife." Celebrity chefs Mario Batali, Anthony Bourdain and Gordon Ramsay guest star as themselves in this season 23 episode.

Luann Van Houten

Patty Bouvier

Question 30 of 30

"You're like egg salad at a picnic, Bart Simpson. Even when you look good, you know you're going bad."

Chief Clancy Wiggum

Edna Krabappel

Principal Seymour Skinner

Bart desperately wants to ride in a submarine on a school trip, but only the most well-behaved students can go in "Yellow Subterfuge." The episode was named after The Beatles' song "Yellow Submarine." On another musical note, the show's 30,000th musical cue was recorded for this episode.